Autopsy results released for teacher's choking death at Cubs game

May 9, 2013 5:00:13 PM PDT

May 8, 2013 (PALOS HEIGHTS, Ill.) --

An autopsy ruled that Maureen Oleskiewicz, the southwest suburban middle school teacher who died after choking on a hot dog at the Cubs game on Sunday, died from a lack of oxygen to the brain caused by choking on food and intoxication. RELATED STORY: Teacher, 28, dies after choking on hot dog at Cubs game

Officials say 28-year-old Oleskiewicz, of Orland Park, was sitting in the bleachers Sunday around 12:55 p.m. with her brother when she began choking.

Oleskiewicz fell to the floor and went into cardiac arrest, despite resuscitation efforts. Ballpark staff and onsite EMTs responded and transported her to Advocate Illinois Masonic Medical Center.

Oleskiewicz died on Tuesday after being kept on life support so that her organs could be donated.